give a few symptoms of each,
to assist parents in making the distinction.

29. DIAGNOSIS FROM MEASLES.

In scarlatina the heat is much greater, and the pulse is much quicker
than in measles.--In scarlatina the throat is inflamed, usually the
brain affected, and the patient smells like salt-fish, old cheese or the
cages of a menagerie; in measles, the eyes are affected, inflamed, and
incapable of bearing the light; the organs of respiration likewise
(thence coryza, sneezing, hoarseness, cough); the perspiration smells
like the feathers of geese freshly plucked.--In scarlatina the period of
incubation is a day less than in measles; namely, in scarlatina the rash
appears on the second day after the first symptoms, in measles on the
third.--The scarlet-rash consists of large, irregular, _flat_ patches,
which cover large spaces with a uniform scarlet-red, being brightest in
those parts which are usually covered by the garments of the patient;
in measles the spots are small, roundish or half-moon-like, with little
grains upon them, and usually of a darker color; the measle-rash is
thickest in such parts as are exposed to the air.--In scarlatina the
symptoms of fever and the affection of the mucous membranes continue two
days after the eruption has begun to make its appearance; in measles the
eruption diminishes those symptoms at once.--The scarlet-rash stands out
a day or two less than the measle-rash, and comes off in laminae, whilst
the latter comes off in small scales or scurfs.

30. THE PROGNOSIS,

under a well conducted course of hydriatic treatment is, in general,
favorable. Much depends, however, on the season of the year (in damp and
cold weather--partly owing to a lack of pure air in the sick-room--the
disease is more dangerous than in summer); on the general health of the
patient (not on his mere looks, for well-fed and stout children are
subject to affections of the brain); on the age of the patient (adults
are generally more in danger than children); on the form of the disease
and the character of the fever (erethic or mild fever being the most
favorable, whilst typhoid fever is the worst; a violent character of the
fever is not very dangerous under hydriatic treatment, as we have plenty
of means to limit its ravages without weakening the patient); on the
eruption, the condition of the throat, the process of desquamation, &c.

31. FAVORABLE SYMPTOMS

are the following: Absence of internal inflammation;